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2007 iTest Problems/Problem 7

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Problem

An equilateral triangle with side length 1 has the same area as a square with side length s. Find s.

\mathrm{(A)}\,\frac{\sqrt[4]{3}}{2}\quad\mathrm{(B)}\,\frac{\sqrt[4]{3}}{\sqrt{2}}\quad\mathrm{(C)}\,1\quad\mathrm{(D)}\,\fra...

Solution

An equilateral triangle with side length 1 has an area of \frac{(1)^2\sqrt{3}}{4}=\frac{\sqrt{3}}{4}, and a square with that area has a side length of \sqrt{\frac{\sqrt{3}}{4}}=\frac{\sqrt[4]{3}}{2} \Rightarrow \mathrm{(A)}

See Also

2007 iTest (Problems)
Preceded by:
Problem 6
Followed by:
Problem 8
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